You Only Live Up to the Standards You Set

While I’m not one to advocate many personal development hacks, there is one

itsmoh: Do something you have never done before.
Pop-upView Separately

itsmoh:

Do something you have never done before.

Pop-upView Separately

How to install Ruby 1.9.2, Rails 3, PostgreSQL, Git and Heroku on Ubuntu 11.04

This post is a copy of a question that I answered some days ago on AskUbuntu.com and is my first english post.

I think if you follow this instructions you won’t have problems.

1- First install RVM

bash < <(curl -s https://rvm.beginrescueend.com/install/rvm)

2- After, you have to put this snippet on your .bashrc or .bash_profile

[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"

3- Install Ruby 1.9.2 via RVM

rvm install ruby-1.9.2-p180 #NEVER USE SUDO WITH RVM

4- Set Ruby 1.9.2 as your default version:

rvm use 1.9.2-p180 --default

5- Now, you have to install PostgreSQL DB, change password from user ‘postgres’ and restart PostgreSQL server.

sudo apt-get install postgresql-8.4
sudo -u postgres psql template1
ALTER USER postgres with encrypted password 'your_password';
sudo /etc/init.d/postgresql restart

6- Installing GIT:

sudo apt-get install git-core git-gui git-doc

7- Finally, install gems Rails, Heroku e PG(PostgreSQL):

gem install rails pg heroku

I hope this may have helped you! :)

(via nerdpride)

(via )

Se algum dia alguém fechar as portas para você não se desespere, pule a janela, você não é aleijado.
Carro Velho (YouTube)


Write in C (by albertveli)

Deploying a Sinatra + DataMapper + SQLite app to Heroku

yamilurbina:

Recently I followed the excellent Nettuts’ session on Singing with Sinatra, and I learned a lot about Rack-only apps.

I pushed the app to Heroku and all I was getting was “Application Error”. I found out that Heroku only uses PostgreSQL as database, so SQLite will not work at all. This is what you should do:

a) Make sure you have a .gems file on the top folder with all the gems you need:

sinatra
data_mapper
rack-flash
sinatra-redirect-with-flash
builder
dm-postgres-adapter

Did you notice the dm-postgres-adapter at the end?. That gem is ABSOLUTE NECESSARY if you coded your app using SQLite and DataMapper and you want to push it to Heroku. I repeat. ABSOLUTE NECESSARY.

b) We also need a configure.ru file at the top folder:

require 'your_sinatra_app_file_name'
run Sinatra::Application

c) On your Sinatra file (the one that has all the code) we need to tell DataMapper which database to use:

# Setting up the database
DataMapper.setup(:default, ENV['DATABASE_URL'] || "sqlite3://#{Dir.pwd}/mydatabase.db")

The part ENV['DATABASE_URL'] is used by Heroku to assign a database to our app. If we are developing locally, we just use mydatabase.db, which is SQLite. Got it?

d) Finally, we push the DB to Heroku:

heroku db:push sqlite://mydatabase.db #assuming you are on your app directory

Our SQLite database will be translated to a PostgreSQL database automatically. No hassle!

Just push it (the app, I mean) and there you go. It will work. You are a hero.